Quantum Computing
Math guided by quantum mechanics.
Quantum computing leverages principles of quantum mechanics, such as superposition and entanglement, to perform computations. Unlike classical computers that store information as bits representing either 0 or 1, quantum computers use qubits.
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🧒 Erkläre es wie einem 5-Jährigen
🌀 Imagine being able to try every key on a keychain at the exact same second to find the right one. That's what quantum computers do with data.
🤓 Expert Deep Dive
## The Quantum Threat: Q-Day
Most modern internet security (banking, messaging, blockchain) relies on the fact that classical computers simply cannot factor large numbers into primes quickly. Shor's algorithm proves that a large-scale quantum computer can do this. 'Q-Day' is the hypothetical date when quantum computers become powerful enough to break current encryption, necessitating a global transition to Post-[Quantum [Cryptography](/de/terms/quantum-cryptography)](/de/terms/post-quantum-cryptography) (PQC).